So as for my issue of not being able to open WordPress from the Toolkit, but being able to open it from Active List, it turns out that Elementor Pro (what I use for all of my sites) has ONE file with deprecated code in it...
Elementor basically said it is not their problem to be concerned with one click login from control panels... I have to agree.
I was told by Plesk support that the one-click login feature for WP works differently on the Active list (which has always worked) and the Dynamic list (which has never worked, at least with Elementor Pro).
Which means the the Dynamic List method is inferior since it is NOT predicated on some obscure file in a plugin. (There HAS to be other plugins with this issue for WP, see what the issue is below from Plesk support and confirmed by me when I made the change in the appropriate file to the new methodolgy for PHP).
It begs the question why what is installed on the site (outside of a security plugin) should have ANYTHING to do with PLESK/WP Toolkit being able to function properly? And I am skeptical of the claim below where they say it isnt them, it is actually WP-CLI... While it makes sense, it just seems like you shouldnt move away from the internal method, or at least maintain the choice until Elementor is forced to fix the issue.
Especially since there is DEFINITELY a method of one-click login that ISNT impacted if some obscure file in some plugin happens to have deprecated code in it...........????????
I know the natural reaction to bug reports is to find some reason to point the finger elsewhere, and YES Elementor should 100% fix this, but they will not, see their response below, but this could end up being a MASSIVE game of whack a mole where plugins and extensions to plugins that might have slightly out of date code, code that works perfectly fine still, and most developers will not be in a rush to fix over other things, and we just continuously end up with a relatively useless (at least for my use case) control panel...
Plesk should 100% figure out why their one-click on dynamic lists breaks due to code in some random plugin (especially a plugin as popular as Elementor Pro) is deprecated. As THAT seems like a significantly bigger issue and I suspect that once users of Plesk figure it out once the change is forced, they are going to get a significant amount of support requests.
According to the August 2023 WordPress statistics:
20% of all new WP websites use Elementor
Elementor currently powers 8% of ALL WP websites online
Elementor Support Response to Issue:
View attachment 24353
Issue Plesk Support Found with both of our responses:
View attachment 24354